MORE FUEL PSI. need advice

[m.malloy]

ok i want to upgrage the fuel system. do i get a new pump, inline or the boost-a-pump.

[bu-bye]

why do you want to upgrade? Are you running a Supercharger or Nitrous?

[viper98885]

I agree...unless you are running forced induction, nitrous or a serious cam that would require more fuel, I would suggest spending your money on another modification. Other mods would be more beneficial.

[Arctc Wolf]

There is no reason to upgrade the fuel system until you get up to nitrous, sc, or maybe heads/cam. but, just to answer your question, a walboro in-tank pump is pretty good at taking care of most of your fuel needs. bigger fuel lines help, I suggest only getting 1 size bigger for now, unless you're prepping for bigger and better things later on. and adjustable fpr will help get more fuel into the cylinders, and you'll need custom programming to run w/ bigger injectors. the stock fuel system in our cars can supposedly support up to 270 rwhp(I think), w/o upgrading anything. don't forget to get a higher flow fuel filter also.

[John_D.]

<blockquote>quote:</font><hr>Originally posted by m.malloy:
ok i want to upgrage the fuel system. do i get a new pump, inline or the boost-a-pump.<hr></blockquote>

Are you still running that 100 wet shot you posted about a little while back?

People have gone all three routes... I believe Magnus has a new in-tank pump with a higher capacity, I forget the brand, walbro I think. 12secondV6 has the boost-a-pump. I just got my boost-a-pump in the mail.

For more flow on demand, instead of all the time, I think the boost-a-pump is perfect. You can wire it to only come on when you're spraying, and automatically revert back to normal when you're not. It's probably the easiest one to add, and to remove later if you want to sell the car and keep the mod. The pump is being overdriven for only a small period of time, so I wouldn't expect any extra wear and tear on it.

The only other downside to pumping more fuel all the time (with a bigger pump or an inline), besides the install effort, is a little bit of extra heat the fuel may pick up from being circulated more... I don't think anyone would really notice. (unless you're going for that extra .01 second, like some 12second person who shall remain nameless mentioned just recently... [img]smile.gif[/img] )

[12secondv6]

Stock fuel pump here
Stock injectors here
Old set up 291 rwhp 362 rwtq.

My fuel upgrades:
modified computer (fuel mixture richened)
afpr
kenne bell boost a pump (this only boosts voltage, not fuel psi)

Why do you want to upgrade your fuel system?
Magnus has a 255 lph walbro in tank pump.
I'm looking into that now

I'll take 0.01 anytime :D

[m.malloy]

yes i'm still running a 100 wet shot. i just ordered the dynotune rich/lean safety switch for the n20. i'm just thinking in the future cause i'm might up the shot or be running a blower. i think i'm leaning towards the boost-a-pump..

[bu-bye]

I think you will get more help in the Nitrous section. Take it away ToTo... [img]graemlins/toto.gif[/img]

[Ironman24]

If you are going to run a blower buy a fuel pump. An in-tank pump will give you more flow and a inline pump will support higher PSI. If you are running a wet kit the stock pump should be just fine with a boost-a-pump.

I ran a 100 wet shot and actually had to run a smaller fuel jet to get my O2's down, this was on a stock fuel setup. For the blower I needed an inline pump and have a walbro on the shelf if needed in the future.